The world's firstMMO sandbox game for programmers

What is Screeps?

Screeps means “scripting creeps.” It’s an open-source sandbox MMO RTS game for programmers, wherein the core mechanic is programming your units’ AI. You control your colony by writing JavaScript which operate 24/7 in the single persistent real-time world filled by other players on par with you.

Scripting as Gameplay

Real programming, not just pseudocode. You can use libs from real projects.

We use Screeps as a key part of our recruitment process at fleetster. Screeps is useful because it throws candidates into an unknown environment where the number of "right" solutions are very numerous.

Buy Screeps on Steam

This package includes both your private server and 30 free days of CPU subscription trial on the official MMO server.
After the 30 days period is over, you can continue playing on the official server, but your account will be limited to 10 CPU.
To unlock full CPU, you have to order a subscription or use an in-game item called Subscription Token. Private and community-hosted servers are available without subscribing.
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Note:You should have Steam client installed on any supported platform (Windows, Mac, Linux). Log in using the Steam game client once in order to activate your purchase.